Scientists at Oak Ridge National Laboratory (ORNL) are using low-cost titanium powders to develop lightweight, corrosion-resistant, bulletproof alloys for military vehicles and what they hope to be other military and commercial applications.

The latest project is a titanium door for the next-generation Joint Light Tactical Vehicle, which is meant to replace the Humvee and other front-line conveyances.

"By using a titanium alloy for the door, BAE Systems was able to reduce the weight of its vehicle yet at the same time decrease the threat of armor-piercing rounds," said Bill Peter, a researcher in ORNL's Materials Science and Technology Division (PDF).

Titanium is the fourth most common structural metal around. There's more of it in the Earth's crust than all the nickel, copper, chromium, lead, tin, and zinc combined. However, the current multistep, high-temperature batch process method for refining the ore into metal is extremely expensive.

There's a push to change that. The new nonmelt processing technique employed by ORNL and partners could cut costs by up to 50 percent, making it feasible to use titanium alloys for brake rotors, artificial joint replacements, and armor and other defense applications, according to ORNL.

"Instead of using conventional melt processing to produce products from titanium powder, with the new method, the powders remain in their solid form during the entire procedure," Peter said. "This saves a tremendous amount of energy required for processing, greatly reduces the amount of scrap, and allows for new alloys and engineered composites."

Saving money on bulletproof doors is a start; now maybe they can find a cheaper way to make the Pentagon's gold-plated toilet seats.

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The military establishment's ever increasing reliance on technology and whiz-bang gadgetry impacts us as consumers, investors, taxpayers and ultimately as the defended.
Our mission here is to bring some of these products and concepts to your attention based on carefully selected criteria such as importance to national security, originality, collateral damage to the treasury and adaptability to yard maintenance-but not necessarily in that order. E-mail him at markr@milapp.com.
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